The SMTI procedure in xenopus embyos. (a) A fusion construct between a protein of interest and the YFP Venus is (b) introduced into retinal ganglion cell. (c) The cells are dissected and cultured in a dish to study the effect of various chemicals, so-called guidance cues, on local translation in axon tips. (d) This is quantified via the SMTI procedure: segmentation, bleaching, and localisation. (e) Changes can be measured upon cue application even during SMTI acquisitions.